body {
  background-color: #fafafa;
  font-family: -apple-system, BlinkMacSystemFont, Helvetica Neue, PingFang SC, Microsoft YaHei,
    Source Han Sans SC, Noto Sans CJK SC, WenQuanYi Micro Hei, sans-serif;
}

body,
div {
  box-sizing: border-box;
}
